A jetstream 41 was dispatched in non compliance with the nose gear pin locked in the down position.

Attributes
ACN	496479
Time
Date	200012
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Jetstream 41
Operating Under FAR Part	Part 121
Flight Phase	ground : parked ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
ASRS Report	496479
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : company policies
Independent Detector	aircraft equipment other aircraft equipment : nose gear position indication other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Factors
Maintenance	contributing factor : manuals performance deficiency : logbook entry performance deficiency : inspection
Supplementary
Problem Areas	Chart Or Publication Company Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance
Situations
Publication	MAINT. MANUAL

Narrative:

After performing maintenance engine runs, maintenance failed to remove nose landing gear pin. Aircraft departed and returned to gate. Company maintenance manual needs to be updated to eliminate installation of gear pins for engine ground runs. There is no safety concern involved.

Original NASA ASRS Text

Title: A JETSTREAM 41 WAS DISPATCHED IN NON COMPLIANCE WITH THE NOSE GEAR PIN LOCKED IN THE DOWN POS.

Narrative: AFTER PERFORMING MAINT ENG RUNS, MAINT FAILED TO REMOVE NOSE LNDG GEAR PIN. ACFT DEPARTED AND RETURNED TO GATE. COMPANY MAINT MANUAL NEEDS TO BE UPDATED TO ELIMINATE INSTALLATION OF GEAR PINS FOR ENG GND RUNS. THERE IS NO SAFETY CONCERN INVOLVED.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.